public boolean put(V obj) {
//TODO add your code here
int size = size();
try {
Class vClass = obj.getClass();
Method method = vClass.getDeclaredMethod("getName");
method.setAccessible(true);
cache.put((K) method.invoke(obj), obj);
} catch (Exception e) {
return false;
}
return size() > size;
}package com.javarush.task.task34.task3408;
/*
Кэширование
*/
public class Solution {
public static void main(String[] args) throws Exception {
SomeKey someKey = new SomeKey();
someKey.name = "test";
SomeKey someKeyNew = new SomeKey();
someKeyNew.name = "testNew";
SomeValue value = new SomeValue(someKey);
Cache<SomeKey, SomeValue> cache = new Cache<>();
cache.put(value);
SomeValue existingValueFromCache = cache.getByKey(someKey, SomeValue.class);
System.out.println(existingValueFromCache);
SomeValue newValueFromCache = cache.getByKey(someKeyNew, SomeValue.class);
System.out.println(newValueFromCache);
System.out.println(cache.size());
/* Expected output:
SomeValue{myKey=SomeKey{name='test'}}
SomeValue{myKey=SomeKey{name='testNew'}}
2
*/
}
public static class SomeKey {
String name;
@Override
public String toString() {
return "SomeKey{" +
"name='" + name + '\'' +
'}';
}
}
public static class SomeValue {
private SomeKey myKey;
public SomeValue() {
}
public SomeValue(SomeKey myKey) { //use this constructor
this.myKey = myKey;
}
private SomeKey getKey() {
return myKey;
}
@Override
public String toString() {
return "SomeValue{" +
"myKey=" + myKey +
'}';
}
}
}